CN107120521A - A kind of low-temperature (low temperature) vessel interlayer deriving structure - Google Patents
A kind of low-temperature (low temperature) vessel interlayer deriving structure Download PDFInfo
- Publication number
- CN107120521A CN107120521A CN201710309312.4A CN201710309312A CN107120521A CN 107120521 A CN107120521 A CN 107120521A CN 201710309312 A CN201710309312 A CN 201710309312A CN 107120521 A CN107120521 A CN 107120521A
- Authority
- CN
- China
- Prior art keywords
- inner bag
- low
- temperature
- interlayer
- fairlead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
- F17C3/085—Cryostats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0391—Thermal insulations by vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The invention discloses a kind of low-temperature (low temperature) vessel interlayer deriving structure, including inner bag, shell, vacuum insulation set and fairlead, vacuum interlayer is formed between the inner bag and shell, the vacuum insulation set is connected with body seal and connected with vacuum interlayer, described fairlead one end is connected with inner bag, the other end passes shell and is formed with over-hang part, and the over-hang part is provided with the body of the bending extended to inner bag cold events direction in vacuum insulation set.Without reserving larger space mounting pipeline in vacuum interlayer, fairlead can be arranged on to position narrower in interlayer, and do not influence the volume of inner bag.In addition, being provided with bulge loop section and screwed hole on flange, inner bag is facilitated to enter courage, while facilitate inner bag to enter before courage carries out pressure test to it, it is ensured that the performance of inner bag；Body is provided with the sealing gland section being bent upwards, and can prevent cryogenic liquid from flowing to valve end, reduce heat output, it is ensured that the heat-insulating property of low-temperature (low temperature) vessel.
Description
Technical field
The present invention relates to low-temperature (low temperature) vessel technical field, particularly a kind of low-temperature (low temperature) vessel interlayer deriving structure.
Background technology
Low-temperature (low temperature) vessel is a kind of storage tank for being used to transporting and storing liquefied gas at low temp, and it includes being used to load cryogenic liquid
Inner bag, and the shell outside inner bag forms in interlayer, mezzanine space filling heat insulator and takes out true between inner bag and shell
Sky, to ensure that low-temperature (low temperature) vessel has good heat-insulating property, knot is drawn to load and unload cryogenic liquid, it is necessary to be set in interlayer
Structure, but interlayer deriving structure of the prior art, in order to adapt to expanding with heat and contract with cold for inner bag, can typically be set in mezzanine space with
The crooked pipeline of inner bag connection, because pipeline needs bending, space-consuming is big, and reserved larger space, influence are needed in interlayer
The increase of inner bag volume.
The content of the invention
It is contemplated that at least solving one of above-mentioned technical problem in correlation technique to a certain extent.Therefore, this hair
Bright to propose a kind of low-temperature (low temperature) vessel interlayer deriving structure, fairlead can be arranged on position narrower in interlayer by it, and not influence
The volume of inner bag.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of low-temperature (low temperature) vessel interlayer deriving structure, including inner bag, shell and the vacuum clip between inner bag and shell
Layer, in addition to：
Vacuum insulation set, is connected with body seal and is connected with vacuum interlayer；
Fairlead, one end is connected with inner bag, and the other end passes shell and is formed with over-hang part, and the over-hang part is in vacuum insulation
The body of the bending extended to inner bag cold events direction is provided with set.
As the improvement of above-mentioned technical proposal, the inner bag is connected by flange with fairlead, the flange be provided with it is interior
Courage welding first end, with fairlead weld the second end, and insertion first end and the second end through hole, the through hole with it is interior
Courage, fairlead are connected.
Further, the second end correspondence lead to the hole site is provided with for being connected and can match somebody with somebody with seal cap sealing with fairlead
The bulge loop section of conjunction, second end is additionally provided with the screwed hole for fixing seal lid on the outside of bulge loop section.
Further, the body is provided with the sealing gland section being bent upwards.
Further, the body is in the shape of a spiral.
Further, the body is provided with telescopic bellows.
Further, the body is provided with reclinate bend loss.
Further, connected between the bend loss and sealing gland section by the first straight length, body is in the first straight length both sides
It is respectively arranged with the second straight length being connected with sealing gland section, the 3rd straight length being connected with bend loss, first straight length, the
Two straight lengths and the 3rd straight length are laid with equilateral triangle.
Further, second straight length, sealing gland section, the first straight length, bend loss and the 3rd straight length pass through the company of welding
Connect.
Further, the first end is welded in the bottom of inner bag, and the first end sets oriented second concave end and run through
The blowpit of flange, the blowpit is connected with through hole.
The beneficial effects of the invention are as follows：The present invention is by setting the vacuum for being connected and being connected with vacuum interlayer with body seal
Separation sleeve, and the body of the bending extended to inner bag cold events direction is set in vacuum insulation covers, thus need not in vacuum clip
Fairlead, can be arranged on position narrower in interlayer, and do not influence the appearance of inner bag by reserved larger space mounting pipeline in layer
Product.In addition, being provided with bulge loop section and screwed hole on flange, facilitate inner bag to enter courage, it is pressed while facilitating inner bag to enter before courage
Power is tested, it is ensured that the performance of inner bag；Body is provided with the sealing gland section being bent upwards, and can prevent cryogenic liquid from flowing to valve end, subtract
Small heat output, it is ensured that the heat-insulating property of low-temperature (low temperature) vessel.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of one embodiment of the present invention；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is Fig. 1 upward view；
Fig. 4 is the structural representation of the first embodiment of the body in the present invention；
Fig. 5 is the structural representation of another embodiment of the invention；
Fig. 6 is enlarged drawing at B in Fig. 5；
Fig. 7 is Fig. 5 upward view；
Fig. 8 is the side view of the second embodiment of the body in the present invention；
Fig. 9 is the front view of the second embodiment of the body in the present invention；
Figure 10 is the top view of the second embodiment of the body in the present invention；
Figure 11 is the top view of the flange in the present invention；
Figure 12 is the diagrammatic cross-section of the flange in the present invention；
Figure 13 is the flange and the structural representation of closure cooperation in the present invention.
Embodiment
Referring to figs. 1 to Figure 12, a kind of low-temperature (low temperature) vessel interlayer deriving structure of the invention, including it is inner bag 11, shell 12, true
Empty separation sleeve 21 and fairlead 22, are formed with vacuum interlayer 13, the vacuum insulation set 21 between the inner bag 11 and shell 12
It is tightly connected and is connected with vacuum interlayer 13 with shell 12, described one end of fairlead 22 is connected with inner bag 11, the other end passes outer
Shell 12 is formed with over-hang part, and the over-hang part covers the bending for being provided with and extending to the cold events direction of inner bag 11 in 21 in vacuum insulation
Body, reference picture 3 and Fig. 7, the direction of arrow in figure are the direction of the cold events of inner bag 11.The present invention is due to by the body of bending
It is arranged in the vacuum insulation set 21 being connected with vacuum interlayer 13, thus without reserving larger space peace in vacuum interlayer 13
Fairlead 22, can be arranged on position narrower in interlayer, and do not influence the volume of inner bag 11 by tubulature road.
Reference picture 1 and Fig. 5, the inner bag 11 are connected by flange 20 with fairlead 22, and reference picture 11 is described convex to Figure 13
Edge 20 is provided with the first end welded with inner bag 11, the second end welded with fairlead 22, and insertion first end and the second end is logical
Hole 201, the through hole 201 is connected with inner bag 11, fairlead 22.The flange 20 plays a part of transition connection, reduces stress
Concentrate.Inner bag 11 enters courage for convenience, while facilitate inner bag 11 to enter before courage carries out pressure test to it, it is ensured that the property of inner bag 11
Can, the flange 20 is provided with the second end, correspondence through hole 201 position for being connected with fairlead 22 and can be with seal cap sealing
The bulge loop section 202 of cooperation, second end is additionally provided with the screwed hole 203 for fixing seal lid in the outside of bulge loop section 202.
Inner bag 11 enters before courage, is sealed flange 20 using closure and bolt, you can easily carry out pressure test to inner bag 11, simultaneously
Because the protrusion surface size of inner bag 11 of flange 20 is shorter, inner bag 11 easily can be pulled in shell 12 by dismounting closure and bolt
It is interior, and the setting of bulge loop section 202, facilitate the welding of pipeline, it is ensured that welding quality.It is preferred that, the through hole 201 is at the second end
The installation cavity 2011 for inserting fairlead 22 is provided with, the installation cavity 2011 is provided with inserts depth for positioning fairlead 22
The step of degree.Welded again after the insertion installation cavity 2011 of fairlead 22, advantageously ensure that welding quality.The through hole 201 exists
The export mouth 2012 for facilitating medium to draw off is provided with first end, the cross-sectional area of the export mouth 2012 is by first end to
Two ends are gradually reduced.The export mouth 2012 can reduce flow resistance when medium is drawn off, and make medium more smooth when drawing off.It is described
The cross section cocoa of export mouth 2012 is circular or trapezoidal.The first end is welded in the bottom of inner bag 11, and the first end is set
It is equipped with to the second concave end and through the blowpit 204 of flange 20, the blowpit 204 is connected with through hole 201.The blowpit
204 can be such that the medium in inner bag 11 unloads as much as possible totally, and the off-loadable undesired impurities totally remained.
The body is provided with the sealing gland section 221 being bent upwards, can make the cryogenic liquid that is placed in container and valve end by
A stable liquid-gas interface is formed between thermal evaporation gas, prevents cryogenic liquid from flowing to valve end, reduces heat output, is protected
Demonstrate,prove the heat-insulating property of low-temperature (low temperature) vessel.
Reference picture 4, is the first embodiment of the body in the present invention, and the shape of the body twist, forms class
Spring structure, it is ensured that fairlead 22 has enough elastic allowances to meet the amount of contraction after the dress liquid of inner bag 11 required for cold events,
So as to greatly reduce tensile stress, and then it ensure that the connecting portion between fairlead 22 and inner bag 11 not by drawing crack.It is preferred that
Ground, the body is that whole piece stainless steel tube is bent, its bend after be shaped as after two elongated circle sections that two ends are to going out, two
Elongated circle section forms two sealing gland sections 221, allows fairlead 22 to produce dual sealing gland effect, adds the length of fairlead 22,
Greatly reduce heat output, it is ensured that the good heat-insulating property of low-temperature (low temperature) vessel.
Reference picture 8 is the second embodiment of the body in the present invention to Figure 10, and the body is provided with telescopic ripple
Line pipe 222, it is ensured that fairlead 22 has enough elastic allowances to meet the amount of contraction after the dress liquid of inner bag 11 required for cold events, from
And tensile stress is greatly reduced, and then ensure that the connecting portion between fairlead 22 and inner bag 11 not by drawing crack.The pipe
Body is provided with reclinate bend loss 223, and extension body covers the length in 21 in vacuum insulation, reduces heat output, it is ensured that low
The heat-insulating property of warm container.Connected between the bend loss 223 and sealing gland section 221 by the first straight length 224, body is first
It is straight that the both sides of straight length 224 are respectively arranged with the second straight length 225 being connected with sealing gland section 221, the 3rd be connected with bend loss 223
Pipeline section 226, first straight length 224, the second straight length 225 and the 3rd straight length 226 are laid with equilateral triangle, are both improved
The aesthetic property of fairlead 22, make it that pipe structure is compact, small volume again.Preferably, second straight length 225, sealing gland section
221st, the first straight length 224, the straight length 226 of bend loss 223 and the 3rd are by being welded to connect.Relative to the body knot integrally bent
Structure, can greatly reduce 22 groups of fairlead to covering the size in 21 to vacuum insulation, so as to reduce the size of vacuum insulation set 21, subtract
The weight of the light present invention.For convenience by of the present invention group to on low-temperature (low temperature) vessel, the bellows 222 is arranged at the 3rd straight length
On 226.Certainly, the bellows 222 can also be set to the first straight length 224, the second straight length 225, sealing gland section 221 or curved
On either segment in pipeline section 223.
The perforation 121 passed through for fairlead 22 is offered outside the shell 12, for reinforcement shell 12, the shell 12 exists
Shell stiffening ring 14 is welded with around perforation 121, the shell stiffening ring 14 is welded with vacuum insulation set 21, and one is to serve
The effect of the reinforcement for openings of shell 12, two be that can increase weld strength and guarantee welding quality.Reference picture 2, when vacuum separation sleeve 21
Appearance and size it is larger when, vacuum insulation set 21 is welded after being overlapped with shell 12；Reference picture 6, when vacuum separation sleeve 21
When appearance and size is smaller, welded again with shell 12 after the vacuum insulation insertion perforation 121 is interior, to increase weld strength and guarantee
Welding quality.
The fairlead 22 is welded by exporting reinforced pipe 23 with vacuum insulation set 21, and the outlet reinforced pipe 23 was served
Connection function is crossed, that tries one's best reduces the local stress produced by structural mutation, while weld strength can be increased and ensure to weld
Connect quality.
The interlayer deriving structure of the present invention, can be applied not only to horizontal cryogenic vessel, can also be applied to vertical low temperature
Container, is equally applicable to the less low-temperature (low temperature) vessel of spacing between the interior end socket of inner bag 11 and the outside head of shell 12.
In the description of the invention, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or dark
Show relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", the feature of " second " are defined
It can express or implicitly include one or more this feature.In the description of the invention, " multiple " be meant that to
It is few two, such as two, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
It is further to note that each specific technical characteristic described in above-mentioned embodiment, not
In the case of contradiction, it can be combined by any mode, helically the body of shape may also set up bellows 222, to carry
Deformable surplus of high body etc., for unnecessary repetition, the present invention to various possible combination not otherwise stateds, when
So, it can also be combined between different embodiments, without departing from the creation thought of the present invention.
The above embodiments are merely illustrative of the technical solutions of the present invention and is not limited, all without departing from the present invention
Any modification of spirit and scope or equivalent substitution, it all should cover in the range of technical solution of the present invention.
Claims (10)
1. a kind of low-temperature (low temperature) vessel interlayer deriving structure, including inner bag, shell and the vacuum interlayer between inner bag and shell,
Characterized in that, also including：
Vacuum insulation set, is connected with body seal and is connected with vacuum interlayer；
Fairlead, one end is connected with inner bag, and the other end passes shell and is formed with over-hang part, and the over-hang part is in vacuum insulation set
It is provided with the body of the bending extended to inner bag cold events direction.
2. a kind of low-temperature (low temperature) vessel interlayer deriving structure according to claim 1, it is characterised in that：The inner bag passes through convex
Edge is connected with fairlead, and the flange is provided with the first end welded with inner bag, the second end welded with fairlead, and insertion first
End and the through hole at the second end, the through hole are connected with inner bag, fairlead.
3. a kind of low-temperature (low temperature) vessel interlayer deriving structure according to claim 2, it is characterised in that：The second end correspondence
Lead to the hole site is provided with the bulge loop section for being connected and can coordinate with seal cap sealing with fairlead, and second end is in bulge loop section
Outside is additionally provided with the screwed hole for fixing seal lid.
4. a kind of low-temperature (low temperature) vessel interlayer deriving structure according to claim 1, it is characterised in that：The body is provided with
The sealing gland section being bent upwards.
5. a kind of low-temperature (low temperature) vessel interlayer deriving structure according to claim 4, it is characterised in that：The body is helically
Shape.
6. a kind of low-temperature (low temperature) vessel interlayer deriving structure according to claim 4, it is characterised in that：The body is provided with
Telescopic bellows.
7. a kind of low-temperature (low temperature) vessel interlayer deriving structure according to claim 6, it is characterised in that：The body is provided with
Reclinate bend loss.
8. a kind of low-temperature (low temperature) vessel interlayer deriving structure according to claim 7, it is characterised in that：The bend loss and gas
Seal between section by the connection of the first straight length, it is straight that body is respectively arranged with second be connected with sealing gland section in the first straight length both sides
Pipeline section, the 3rd straight length being connected with bend loss, first straight length, the second straight length and the 3rd straight length are with equilateral triangle
Shape is laid.
9. a kind of low-temperature (low temperature) vessel interlayer deriving structure according to claim 8, it is characterised in that：Second straight tube
Section, sealing gland section, the first straight length, bend loss and the 3rd straight length are by being welded to connect.
10. a kind of low-temperature (low temperature) vessel interlayer deriving structure according to claim 2, it is characterised in that：The first end weldering
The bottom of inner bag is connected to, the first end sets oriented second concave end and through the blowpit of flange, and the blowpit is with leading to
Hole is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309312.4A CN107120521B (en) | 2017-05-04 | 2017-05-04 | Sandwich leading-out structure for low-temperature container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710309312.4A CN107120521B (en) | 2017-05-04 | 2017-05-04 | Sandwich leading-out structure for low-temperature container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107120521A true CN107120521A (en) | 2017-09-01 |
| CN107120521B CN107120521B (en) | 2023-08-04 |
Family
ID=59726651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710309312.4A Active CN107120521B (en) | 2017-05-04 | 2017-05-04 | Sandwich leading-out structure for low-temperature container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107120521B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160317A (en) * | 2018-02-14 | 2019-08-23 | 爱发科低温泵株式会社 | Liquefied gas at low temp generation device |
| CN114252344A (en) * | 2021-12-20 | 2022-03-29 | 北京星际荣耀空间科技股份有限公司 | Low-temperature hydraulic testing device and method for pressure container without heat insulation layer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4674289A (en) * | 1985-06-26 | 1987-06-23 | Andonian Martin D | Cryogenic liquid container |
| CN104676238A (en) * | 2013-11-27 | 2015-06-03 | 张家港中集圣达因低温装备有限公司 | High-vacuum insulation low-temperature vessel |
| CN205806926U (en) * | 2016-05-20 | 2016-12-14 | 江西制氧机有限公司 | A kind of cryogenic liquid pot type container heat insulation layer perforating tube structure |
| CN206072755U (en) * | 2016-08-26 | 2017-04-05 | 新兴能源装备股份有限公司 | Deep cooling vacuum insulation vessel sealing gland pipeline |
| CN206770970U (en) * | 2017-05-04 | 2017-12-19 | 广东建成机械设备有限公司 | A kind of low-temperature (low temperature) vessel interlayer deriving structure |
-
2017
- 2017-05-04 CN CN201710309312.4A patent/CN107120521B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4674289A (en) * | 1985-06-26 | 1987-06-23 | Andonian Martin D | Cryogenic liquid container |
| CN104676238A (en) * | 2013-11-27 | 2015-06-03 | 张家港中集圣达因低温装备有限公司 | High-vacuum insulation low-temperature vessel |
| CN205806926U (en) * | 2016-05-20 | 2016-12-14 | 江西制氧机有限公司 | A kind of cryogenic liquid pot type container heat insulation layer perforating tube structure |
| CN206072755U (en) * | 2016-08-26 | 2017-04-05 | 新兴能源装备股份有限公司 | Deep cooling vacuum insulation vessel sealing gland pipeline |
| CN206770970U (en) * | 2017-05-04 | 2017-12-19 | 广东建成机械设备有限公司 | A kind of low-temperature (low temperature) vessel interlayer deriving structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160317A (en) * | 2018-02-14 | 2019-08-23 | 爱发科低温泵株式会社 | Liquefied gas at low temp generation device |
| CN114252344A (en) * | 2021-12-20 | 2022-03-29 | 北京星际荣耀空间科技股份有限公司 | Low-temperature hydraulic testing device and method for pressure container without heat insulation layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107120521B (en) | 2023-08-04 |
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Inventor after: Liang Haijun Inventor after: Liang Zhiming Inventor after: Zhao Rongbin Inventor after: Liang Jianling Inventor after: Liang Jiandong Inventor after: Tan Xirong Inventor after: Xu Jianchi Inventor after: Kong Qingyong Inventor after: Zhen Peiquan Inventor before: Liang Haijun Inventor before: Liang Jianling Inventor before: Liang Jiandong Inventor before: Tan Xirong Inventor before: Xu Jianchi Inventor before: Kong Qingyong Inventor before: Zhen Peiquan |
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